Benign Paroxysmal Positional Vertigo Involving the Anterior Semicircular Canal
摘要
Anterior (sometimes called superior) semicircular canal benign paroxysmal positional vertigo (BPPV) is the least common form of BPPV. Anterior canal BPPV of a given side can be diagnosed when the Dix–Hallpike maneuver on the opposite side elicits nystagmus that is down beat, with a torsional component (and sometimes a horizontal component) beating away from the affected ear (and toward the undermost ear). Treatments include the reverse Epley maneuver, Semont maneuver, Casani maneuver, Kim maneuver, and Yacovino maneuver.